Composite Isostatic Graphite Bipolar Plate

Harog Technology has applied for more than 70 related patents in the field of fuel cells. The ultra-thin graphite bipolar plate for vehicles has a web thickness of 0.3mm, resistant to high temperature, high pressure and strong acid, service life >30,000h. Besides, we have air-cooled graphite bipolar plates for low-power products, which are currently being used in drones, two-wheelers, forklifts and other scenarios.

Availability:



Inquire Add to Basket

Product Description

Product Advantage

• Special impregnation process and exclusive formulation of graphite modifier ensure zero leakage under operating conditions for more than 30,000 hours

• Special surface processing technology to ensure contact resistance ≤ 5mΩcm2

• Exclusively designed and developed large-area bipolar plate, the power per liter is greatly improved

• Light milling process, the plate can be as thin as 0.5mm (milling on one side)/0.8mm (milling on both sides)

Technical Parameters

Datasheet of Harog' s Composite Isostatic Graphite Bipolar Plate

Parameter	Unit	Data	Remark
Density	g/cm³	≥2.0
Electrical resistivity	μΩ·m	≤10
Flexural strength	MPa	＞60
Compressive strength	MPa	＞130
Shore hardness	HSD	＞70
Web thickness	mm	≥0.3
Air permeability （@220kpag）	Sccm	＜0.1	100% inspection
Contact resistance	mΩ·cm²	≤5
Glycol compatibility	/	Excellent
Acid resistance	/	Excellent
Metal ion content	ppm	≤50
Operation life	h	＞30,000
Working temperature	℃	-40~200
CTW	10^-6/°C	5.6
ELV inspection report	/	Qualified
IMDS	/	/	Company ID: 218976
Poisson ration	/	0.35
Elastic modulus	GPa	11
Specific heat capacity	J/kg·°C	0.75

Product Uses

Composite isostatic graphite bipolar plates from Harog are high-performance components suitable for a wide range of fuel cell applications. They offer excellent electrical conductivity, corrosion resistance, and mechanical strength, ensuring efficient and reliable fuel cell operation across different technologies

• Proton Exchange Membrane Fuel Cells (PEMFCs)

Composite isostatic graphite bipolar plates are designed to meet the stringent requirements of PEMFCs. They offer high electrical conductivity, corrosion resistance, and gas distribution capabilities. These plates are crucial for efficient power generation and long-term durability, making them ideal for automotive and portable power applications

• Direct Methanol Fuel Cells (DMFCs)

In DMFCs, these plates manage the flow of methanol and oxygen, optimizing fuel cell performance. Their high conductivity and chemical stability ensure efficient energy conversion, making them suitable for portable electronic devices.

• Alkaline Fuel Cells (AFCs)

In AFCs, Harog’s graphite bipolar plates ensure efficient electron transfer and gas distribution. Their resistance to the alkaline environment and high conductivity enhance the cell’s performance. These plates are crucial for applications requiring high power density and reliability, such as space and military applications.

• Phosphoric Acid Fuel Cells (PAFCs)

For PAFCs, composite isostatic graphite bipolar plates withstand the acidic environment, providing stable electrical conductivity and managing the flow of reactants for consistent power output.

• Anion Exchange Membrane Fuel Cells (AEMFCs)

Composite isostatic graphite bipolar plates are also compatible with AEMFCs. They provide the required conductivity and stability in the alkaline environment, ensuring efficient operation and long-term durability. These plates are suitable for applications where AEMFCs are used, such as portable power units and small-scale power generation.